Clamping device

Abstract

The utility model relates to a clamping device which comprises a base provided with a plurality of supporting pieces used for placing workpieces to be clamped. The first clamping assembly comprises a first connecting piece, a connecting rod, a first pressing block and an elastic piece, the first connecting piece is connected with the base, the connecting rod is in sliding connection with the first connecting piece, the first pressing block is connected with one end of the connecting rod, a clamping space is formed between the first pressing block and the supporting piece, and the elastic piece is arranged in the clamping space. The connecting rod is sleeved with the elastic piece, one end of the elastic piece abuts against the first pressing block, and the other end of the elastic piece abuts against the first connecting piece. According to the clamping device, a workpiece can be prevented from being manually pressed for a long time, so that potential safety hazards are eliminated, and meanwhile the workpiece is prevented from deviating.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a clamping device. Background Art

[0002] In the field of automobile processing, a variety of special-shaped workpieces need to be processed. In the steps of stamping, spraying, welding, etc. on special-shaped workpieces, the special-shaped workpieces need to be fixed. At present, special-shaped workpieces are mainly fixed by mechanical clamping. However, due to the irregular shape of special-shaped workpieces, it is necessary to clamp the special-shaped workpieces at multiple positions, and at the same time, it is necessary to support the special-shaped workpieces at multiple positions to prevent the workpieces from shaking during the processing. At present, special-shaped workpieces are mainly loaded and unloaded manually. During the loading and unloading process, the special-shaped workpiece needs to be pressed manually, and then released after the clamping mechanism completes the clamping of the workpiece, so as to prevent the special-shaped workpiece from tilting, falling off, etc. and causing damage. However, during the process of manually pressing the special-shaped workpiece, it is necessary to avoid the working range of the clamping mechanism, resulting in looseness when pressing the special-shaped workpiece, which causes the special-shaped workpiece to shift. At the same time, due to the large number of clamping mechanisms, there are safety hazards when manually pressing the special-shaped workpiece. Utility Model Content

[0003] Therefore, the technical problem to be solved by the present invention is to provide a clamping device that can avoid manual long-term pressing of the workpiece, thereby eliminating safety hazards and preventing the workpiece from deflecting.

[0004] In order to solve the above technical problems, the utility model provides a clamping device, including: a base, the base is provided with a plurality of support members for placing the workpiece to be clamped; a first clamping assembly, including a first connecting member, a connecting rod, a first pressure block and an elastic member, the first connecting member is connected to the base, the connecting rod is slidingly connected to the first connecting member, the first pressure block is connected to one end of the connecting rod, a clamping space is formed between the first pressure block and the support member, the elastic member is sleeved on the connecting rod, one end of the elastic member is abutted against the first pressure block, and the other end of the elastic member is abutted against the first connecting member.

[0005] In one embodiment of the present invention, the diameter of the first pressing block gradually increases from the end portion toward the first connecting member.

[0006] In one embodiment of the present invention, the first connecting member includes a slide groove, the first pressure block is slidably connected to the slide groove, the connecting rod passes through the bottom of the slide groove, and the elastic member is located in the slide groove and abuts against the bottom of the slide groove.

[0007] In one embodiment of the present invention, a baffle rod is also connected to the connecting rod, the center line of the connecting rod is perpendicular to the center line of the baffle rod, and a receiving groove is also provided on the side of the first connecting member away from the first pressure block. The receiving groove passes through the first connecting member, and the center line of the receiving groove is perpendicular to the center line of the connecting rod, and the width of the receiving groove is smaller than the length of the baffle rod.

[0008] In one embodiment of the present invention, a second clamping assembly is further included, which includes a first driving member and a first clamping member. The end of the first clamping member is hinged to the first driving member. The first clamping member is also hinged to a connecting plate, and the connecting plate is also hinged to the first driving member.

[0009] In one embodiment of the present invention, the second clamping assembly further includes a second clamping member connected to the base, and the second clamping member includes a second pressing block located at an end portion, and the second pressing block corresponds to the clamping end of the first clamping member.

[0010] In one embodiment of the present invention, the plurality of support members include a first support member, the first support member includes a second connecting member and a third pressure block, the second connecting member is connected to the base, the third pressure block is located at the end of the second connecting member, the third pressure block includes a clamping block located at the end, and the diameter of the third pressure block gradually increases from the clamping block toward the second connecting member.

[0011] In one embodiment of the present invention, the plurality of support members further include a second support member connected to the base, the second support member includes a second driving member and a fourth pressure block, and the fourth pressure block is connected to the output end of the second driving member.

[0012] In one embodiment of the present invention, the base includes a bottom plate and a support plate, the support plate is connected to the bottom plate, the plane where the support plate is located is perpendicular to the plane where the bottom plate is located, the first connecting member is connected to the support plate, and the two first clamping components are symmetrically arranged.

[0013] In one embodiment of the present invention, a third clamping assembly is further connected to the base plate.

[0014] The above technical solution of the utility model has the following advantages compared with the prior art:

[0015] The clamping device described in this utility model, through the cooperation of the first clamping assembly and the support member, enables the workpiece to be clamped to be clamped between the first pressure block and the support member, thereby eliminating the need for manual pressure on the workpiece to be clamped for a long time, thereby eliminating safety hazards and preventing the workpiece from shifting. The cooperation of the blocking rod and the receiving groove prevents interference from the first pressure block when manually adjusting the abutment position of the clamping member and the support member. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the content of the utility model easier to understand, the utility model is further described in detail below based on the specific embodiments of the utility model and in conjunction with the accompanying drawings, wherein

[0017] Figure 1 This is a structural diagram of a clamping device of the utility model;

[0018] Figure 2 is a schematic structural diagram of the first clamping assembly;

[0019] Figure 3 yes Figure 2 Schematic diagram of part of the structure;

[0020] Figure 4 It is a structural schematic diagram of the second clamping assembly and the first support member.

[0021] Explanation of the reference numerals in the specification: 1. base plate; 2. first clamping assembly; 3. second clamping assembly; 4. first support member; 5. third support member; 6. second support member; 7. fourth clamping assembly; 8. third clamping assembly; 9. fourth support member; 11. support plate; 21. first connecting member; 22. accommodating groove; 23. connecting rod; 24. blocking rod; 25. handle; 26. first pressure block; 27. elastic member; 31. first driving member; 32. first clamping member; 33. connecting plate; 34. second clamping member; 35. second pressure block; 41. second connecting member; 42. third pressure block; 43. clamping block. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0023] Reference Figures 1 to 3As shown, a clamping device of the present invention includes: a base, the base is provided with a plurality of support members for placing the workpiece to be clamped; a first clamping assembly 2, including a first connecting member 21, a connecting rod 23, a first pressure block 26 and an elastic member 27, the first connecting member 21 is connected to the base, the connecting rod 23 is slidingly connected to the first connecting member 21, the first pressure block 26 is connected to one end of the connecting rod 23, and a clamping space is formed between the first pressure block 26 and the support member, the elastic member 27 is sleeved on the connecting rod 23, one end of the elastic member 27 is abutted against the first pressure block 26, and the other end of the elastic member 27 is abutted against the first connecting member 21.

[0024] In a clamping device of this embodiment, the connecting rod 23 is pulled to move the first pressure block 26 toward the first connecting member 21, and the elastic member 27 is compressed at the same time, and then the workpiece to be clamped is pressed against the support member, so that the workpiece to be clamped is located in the clamping position. Then, the connecting rod 23 is released, and the elastic member 27 drives the first pressure block 26 to move, so that the first pressure block 26 and the workpiece to be clamped are pressed against each other, so that the workpiece to be clamped is clamped between the first pressure block 26 and the support member. At this time, the position of the workpiece to be clamped is fixed, and finally the workpiece is clamped by other clamping components of the base. Through the cooperation of the first clamping component 2 and the support member, the workpiece to be clamped can be clamped between the first pressure block 26 and the support member, so that there is no need for manual long-term pressure on the workpiece to be clamped, thereby eliminating safety hazards and preventing the workpiece from shifting.

[0025] The base includes a bottom plate 1 and a support plate 11 . The support plate 11 is connected to the bottom plate 1 , and a plane where the support plate 11 is located is perpendicular to a plane where the bottom plate 1 is located.

[0026] The first clamping assembly 2 is connected to the support plate 11 of the base, and the support plate 11 is connected to two first clamping assemblies 2, and the two first clamping assemblies 2 are symmetrically arranged. The first clamping assembly 2 includes a first connecting member 21, a connecting rod 23, a first pressure block 26 and an elastic member 27. Specifically, the first connecting member 21 is vertically connected to the support plate 11 of the base, the connecting rod 23 is slidably connected to the end of the first connecting member 21 away from the support plate 11, and the connecting rod 23 passes through the first connecting member 21. The first pressure block 26 is connected to the end of the connecting rod 23 close to the support member, and a clamping space is formed between the first pressure block 26 and the support member. Preferably, the first pressure block 26 is columnar, and the diameter of the first pressure block 26 gradually increases from the end toward the direction close to the first connecting member 21, so that the first pressure block 26 is tapered as a whole, thereby making the side wall of the first pressure block 26 fit more tightly to the workpiece to be clamped. The elastic member 27 can be regarded as a spring. The elastic member 27 is mounted on the connecting rod 23. One end of the elastic member 27 abuts against the first pressure block 26, and the other end of the elastic member 27 abuts against the first connecting member 21. By pulling the connecting rod 23, the first pressure block 26 can be moved and the elastic member 27 can be compressed at the same time. A slide groove is provided on the side of the first connecting member 21 close to the pressure block. The first pressure block 26 is slidably connected to the slide groove. The connecting rod 23 passes through the bottom of the slide groove. The elastic member 27 is located in the slide groove and abuts against the bottom of the slide groove. The setting of the slide groove enables the first pressure block 26 to move along the slide groove, thereby guiding the first pressure block 26. Depending on the workpiece to be clamped, the first clamping assembly 2 can be set at different positions, and the angle between the connecting rod 23 and the base plate 1 can be set to different angles, that is, the first pressure block 26 can be set at an angle.

[0027] The connecting rod 23 is also connected to a blocking rod 24, and the center line of the connecting rod 23 is perpendicular to the center line of the blocking rod 24, that is, the connecting rod 23 is vertically connected to the blocking rod 24, and the first connecting member 21 is further provided with a receiving groove 22 on the side away from the first pressure block 26. The receiving groove 22 is set through the first connecting member 21, and the center line of the receiving groove 22 is perpendicular to the center line of the connecting rod 23, that is, the receiving groove 22 is set along the radial direction of the connecting rod 23. When the elastic member 27 is not in a compressed state, the blocking rod 24 is located in the receiving groove 22, and the width of the receiving groove 22 is smaller than the length of the blocking rod 24. When the connecting rod 23 is pulled to compress the elastic member 27, the blocking rod 24 can be located outside the receiving groove 22. By rotating the connecting rod 23 90 degrees, the blocking rod 24 can be against the end of the first connecting member 21, that is, the blocking rod 24 is against the end of the receiving groove 22, thereby making the elastic member 27 in a compressed state and unable to drive the first pressure block 26 to move away from the first connecting member 21. The cooperation between the blocking rod 24 and the receiving groove 22 prevents the interference of the first pressing block 26 when manually adjusting the contact position between the clamping member and the supporting member. Preferably, the end of the connecting rod 23 away from the first pressing block 26 is connected to a handle 25.

[0028] Reference Figure 4As shown, the second clamping assembly 3 is connected to the support plate 11 of the base. The two second clamping assemblies 3 are connected to the support plate 11 and are located at a position where the support plate 11 is away from the bottom plate 1 and close to the included angle. The second clamping assembly 3 includes a first driving member 31, a first clamping member 32, and a second clamping member 34. The first driving member 31 is a linear driving member. The end of the first clamping member 32 is hinged to the first driving member 31. The first clamping member 32 is also connected to a connecting plate 33, and the connecting plate 33 is also hinged to the body of the first driving member 31. The first clamping member 32 extends in opposite directions, and the clamping end of the first clamping member 32 also extends away from the first driving member 31, so that the connection position between the clamping end of the first clamping member 32 and the connecting plate 33 is set at an angle. The second clamping member 34 is connected to the base, and the second clamping member 34 includes a second pressing block 35 located at the end. The second pressing block 35 corresponds to the clamping end of the first clamping member 32, and the end of the second pressing block 35 is transversely flat and is used to cooperate with the positioning hole at the corresponding position on the workpiece to be clamped. The first clamping member 32 and the second clamping member 34 can clamp the workpiece to be clamped.

[0029] Multiple support members include a first support member 4, the first support member 4 includes a second connecting member 41 and a third pressure block 42, the second connecting member 41 is connected to the support plate 11 of the base, and the second connecting member 41 is located at the top of one side of the support plate 11, the third pressure block 42 is located at the end of the second connecting member 41, the third pressure block 42 includes a clamping block 43 located at one end away from the second connecting member 41, the diameter of the third pressure block 42 gradually increases from the clamping block 43 to the second connecting member 41, the clamping block 43 is cylindrical as a whole, and the third pressure block 42 is used to cooperate with the positioning hole at the corresponding position on the workpiece to be clamped.

[0030] The multiple support members also include a second support member 6 connected to the base, the second support member 6 includes a second driving member and a fourth pressure block, the second driving member is a linear driving member, the fourth pressure block is connected to the output end of the second driving member, the second driving member can drive the fourth pressure block to move away from the base plate 1, the two second driving members are located between the two first clamping assemblies 2, and the fourth pressure block is used to offset the corresponding position on the workpiece to be clamped.

[0031] The multiple support members also include a third support member 5, which is located at the top of one side of the support plate 11. The support end of the third support member 5 is longitudinally flat, and the support end of the third support member 5 is used to cooperate with the positioning hole at the corresponding position on the workpiece to be clamped.

[0032] The multiple support members also include a fourth support member 9, which is located on the base plate 1 and is provided with two. The support ends of the fourth support members 9 can be moved by a driving member, and the moving paths of the support ends of the two fourth support members 9 are perpendicular, and the moving paths of the support ends are at an acute angle to the base plate 1. The support ends of the fourth support members 9 are used to abut against corresponding positions on the workpiece to be clamped.

[0033] It also includes a third clamping assembly 8, which is connected to the base plate 1 and is located between the two fourth support members 9. The third clamping assembly 8 includes a third driving member, a third clamping member and a fourth clamping member. The clamping end of the third clamping member is inclined and forms an acute angle with the base plate 1. The driving structure and clamping method of the third clamping assembly 8 are the same as those of the second clamping assembly 3 and are not repeated here.

[0034] It also includes a fourth clamping component 7, which is connected to the support plate 11 and is located close to the base plate 1. The first clamping component 2 is located between the fourth clamping component 7 and the second clamping component 3. The structure of the fourth clamping component 7 is the same as that of the second clamping component 3 and will not be repeated.

[0035] When in use, first pull the connecting rod 23 of the first clamping assembly 2 so that the blocking rod 24 is located outside the accommodating groove 22, and then rotate the connecting rod 23 90 degrees so that the blocking rod 24 is against the end of the accommodating groove 22; then make the corresponding position of the workpiece to be clamped against the first support member 4, the second support member 6 and the third support member 5, so that the workpiece to be clamped is located in the clamping position, and rotate the connecting rod 23 90 degrees again, and the elastic member 27 drives the first pressure block 26 to be against the workpiece to be clamped, so that the position of the workpiece to be clamped is fixed, and finally the second clamping assembly 3, the third clamping assembly 8 and the fourth clamping assembly 7 clamp the workpiece to be clamped, thereby completing the clamping of the workpiece to be clamped.

[0036] The present invention provides a clamping device that, through the cooperation of the first clamping assembly 2 and the support member, enables the workpiece to be clamped to be clamped between the first pressure block 26 and the support member, eliminating the need for manual pressure on the workpiece for a long time, thereby eliminating safety hazards and preventing the workpiece from shifting. The cooperation of the stopper rod 24 and the receiving groove 22 prevents interference from the first pressure block 26 when manually adjusting the abutment position of the clamped workpiece and the support member.

[0037] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A clamping device, characterized in that: include: A base, wherein the base is provided with a plurality of supporting members for placing the workpiece to be clamped; The first clamping assembly includes a first connecting member, a connecting rod, a first pressure block and an elastic member. The first connecting member is connected to the base, the connecting rod is slidably connected to the first connecting member, the first pressure block is connected to one end of the connecting rod, and a clamping space is formed between the first pressure block and the support member. The elastic member is sleeved on the connecting rod, one end of the elastic member is abutted against the first pressure block, and the other end of the elastic member is abutted against the first connecting member.

2. The clamping device according to claim 1, characterized in that: The diameter of the first pressing block gradually increases from the end portion toward the first connecting member.

3. The clamping device according to claim 1, characterized in that: The first connecting member includes a sliding groove, the first pressing block is slidably connected to the sliding groove, the connecting rod passes through the bottom of the sliding groove, and the elastic member is located in the sliding groove and abuts against the bottom of the sliding groove.

4. The clamping device according to claim 1, characterized in that: A baffle rod is also connected to the connecting rod, and the center line of the connecting rod is perpendicular to the center line of the baffle rod. A receiving groove is also provided on the side of the first connecting member away from the first pressure block. The receiving groove passes through the first connecting member, and the center line of the receiving groove is perpendicular to the center line of the connecting rod. The width of the receiving groove is smaller than the length of the baffle rod.

5. The clamping device according to claim 1, characterized in that: It also includes a second clamping assembly, which includes a first driving member and a first clamping member. The end of the first clamping member is hinged to the first driving member. The first clamping member is also hinged to a connecting plate, and the connecting plate is also hinged to the first driving member.

6. The clamping device according to claim 5, characterized in that: The second clamping assembly further includes a second clamping member connected to the base. The second clamping member includes a second pressing block located at an end portion, and the second pressing block corresponds to the clamping end of the first clamping member.

7. The clamping device according to claim 1, characterized in that: The multiple support members include a first support member, the first support member includes a second connecting member and a third pressure block, the second connecting member is connected to the base, the third pressure block is located at the end of the second connecting member, the third pressure block includes a clamping block located at the end, and the diameter of the third pressure block gradually increases from the clamping block toward the second connecting member.

8. The clamping device according to claim 1, characterized in that: The plurality of support members further include a second support member connected to the base, the second support member includes a second driving member and a fourth pressing block, and the fourth pressing block is connected to the output end of the second driving member.

9. The clamping device according to claim 1, characterized in that: The base includes a bottom plate and a support plate, the support plate is connected to the bottom plate, the plane where the support plate is located is perpendicular to the plane where the bottom plate is located, the first connecting member is connected to the support plate, and the two first clamping components are symmetrically arranged.

10. The clamping device according to claim 9, characterized in that: The bottom plate is also connected to a third clamping assembly.

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